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DWC1
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Master

 • 

2.4K Messages

Tue, Sep 18, 2018 1:16 PM

iOS 12 Wifi calling stopped working

Upon upgrade to iOS 12 today WIFI calling no longer works.  I checked all the settings and it's configured correctly.  It worked perfectly prior to the upgrade.   The upgrade installed new carrier settings 33.1.   Any tips or is this a bug?

Responses

Tutor

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10 Messages

3 y ago

My problem has been solved!

Picked up my new iPhone today - the AT&T carrier settings were version 33.0. My other phone downloaded version 33.1 when I did the upgrade to ios 12. It is clear that the inability to use wifi calling is related to the carrier setting version. I will call AT&T support today and let them know.

Tutor

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4 Messages

3 y ago

I still have 33.0 and its working. So are you saying it’s the 33.1? Its now asking me to update my carrier settings and now im afraid too…


DWC1

Master

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2.4K Messages

3 y ago

Great news!  I just got a carrier update to 33.2 and it instantly fixed the problem!   You can force it by going to Settings-->General-->About and it should prompt for it. 

gr8sho

ACE - Professor

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2.7K Messages

3 y ago

The 12.1 public beta is on 33.5.2. 

There’s nothing said afaik relative to release notes  😄

Tutor

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10 Messages

3 y ago

I updated from 33.0 to 33.2 (the new update) and all is well. I think it was just 33.1 that messed things up.

Tutor

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3 Messages

3 y ago

I'm working again also on 33.2.

 

Thank goodness.

Contributor

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1 Message

3 y ago

I just got 33.2 but still not working... When you guys check the carrier version in Settings>General>About>Carrier. Is it showing "AT&T 33.2". When you click it, the text "Carrier" changes to "IMS Status" and the value changes to SMS. This is quite strange to me. Looks like I've got an strange 33.2 version?

Tutor

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10 Messages

3 y ago

When I tap carrier it changes from 33.2 to “voice and SMS”
gr8sho

ACE - Professor

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2.7K Messages

3 y ago

I noticed that as well and is pretty vague. 

But if a carrier update setting is available, a pop up will happen. In your case it turns out the settings are up to date. 

When iOS 12.1 gets released, a new carrier settings will come with it. 

Contributor

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2 Messages

3 y ago

Just got a Carrier Update and AT&T Wi-Fi calling is back!!

 

Tutor

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7 Messages

3 y ago

Yes 33.2 fixes the wifi calling problem. 

Contributor

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1 Message

3 y ago

If your router has 5.2g wifi, try wifi calling with 5.2g network.  I had the same problem.  wifi calling suddenly stop working.  By chance I switch my network to 5.2g and wifi calling become active again.  It worked for me.  Hopefully it will work for you.

Tutor

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6 Messages

3 y ago

Just to add my $0.02.

 

My Phone

iPhone 8 running latest version of iOS 12

Carrier Settings = 33.2

Wi-Fi calling no longer works. I noticed this with the last iOS 11.x upgrade too and, I think, the carrier settings were 33.1 but I can't be 100% certain about that.

When I tap carrier it changes from "33.2" to “SMS”

 

My Wife's Phone

iPhone 8 running latest version of iOS 12

Carrier Settings = 33.0

Wi-Fi calling still works.

I didn't see what happens when I tap carrier on my wife's phone but I assume it's "voice and SMS" (I can check that later)

 

I have tried almost everything falling short of restoring to factory default settings. Two identical phones with the same OS but different carrier settings kinda proves that this is an AT&T issue. I know this has nothing to do with my home network as I have the exact same problems at work.

 

Is there a way to revert back from 33.2 to 33.0 because that would appear to be the fix for me. I see other people reporting success with the 33.2 upgrade but not for me.

 

AT&T -- get this fixed!


Tutor

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6 Messages

3 y ago

After upgrading to iOS 12.1 I got new carrier settings and things seem to be working now. I tested by switching to airplane mode, which worked, and I will try again later where I have no cell coverage.

Tutor

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10 Messages

3 y ago

My carrier settings are version 34.0

Upgraded to ios 12.1 today - still working.

Try upgrading to 12.1 and the carrier settings will likely update as well

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